hi thanks foe reply ... iM rebuilding the pto box bearings and seals .. you may be right ill let you no in the coming mounths .. I think it came off a cj2a 1940s / 50s if it dose not fit ill sell it one on ebay $400 when refurbished probably stand me at £60 A COMPANY CALLED BEARING MART AND HRS SEALS HAVE SIZED UP MY DIFF PINION SEAL FOR MINDY.. ILL LET YOU NO HOW IT GOES

The link below will get you to herm's info regarding overdrives,
The P.T.O. is usually removed and the overdrive takes it's place - but herm has an adaptor so you can run both the overdrive AND the P.T.O.
The link has a listing of which overdrives suit which particular make and/or model of jeep, there is also instructions for determining how many teeth your transfer case has [which will relate directly to your P.T.O.]

When you nail down which P.T.O. you have - and confirm that your transfer case is a Mahindra, give herm a buzz and see if he can supply the correct cogs to match your P.T.O to your transfer case.

You have me a bit jealous - I have been looking for a P.T.O. rear gearbox for some time, with no luck - and have been tempted to cobble one together using salvaged bits and pieces.
[the rear cross member mounted gearbox is normally a 1:1 ratio - all it does is reverse the direction of rotation.]

I have 2 x Mahindra P.T.O.'s in my shed, tomorrow I will dig them out and count the teeth for you as a reference.

The P.T.O. cog that butts up into the transfer case has 15 teeth / splines on both my P.T.O.'s,

Interestingly, the housings of both of mine are virtually identical apart from one having a ruddy great long part or serial number stamped into the housing, while in the same location on the other there is only two digits or numerals cast into the housing [that I cant read].

Both are taken from Aussie specification CJ340DP Mahindra manufactured transfercases.

I can't get a clear view of the teeth / splines in your second photo - but it looks like you might be lucky!

Stephen
--------------
(I'm one of those damn colonials rattling his chains)

hi thanks for your time . yes 15 teeth my mindy is 540 so prop my have to be extended I was thinking of registering as agricultural to see if can lower tax but not to sure if this works any more .. thanks again